Steam and warm-air heater



I I N M l I 3 Sheets-Sheet 1.. E. V. ADKINS. I

v STEAM AND WARM AIR HEATER.

No. 393,735. Patent-ed Dec. 4, 18.88;

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3 S N. I K. D A V (No Model.)

STEAM AND. WARM AIR HEATER.

N. PETERS. Pholulilhcgnpimr. Washington D C.

(N03 Model.) 3 Sheets-Sheet 3.

E. V. ADKINS.

STEAM AND WARM AIR HEATER. N0. 393,735. 3 Patented Dec. 4, 1888.

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UNITED STATES PATENT ()FFICE.

ERASTUS V. ADKINS, OF GRAYLAND, ILLINOIS.

STEAM AND WARM-AIR HEATER.

SPECIFICATION forming part of Letters Patent No. 393,735, dated December4, 1888.

Application fil d April 23,1888. Serial No. 271,869. (No model.)

To all whom, it may concern:

Be it known that I, ERASTUS V. ADKINS, residing at G-rayland, in thecounty of Cook and State of Illinois, and a citizen of the UnitedStates, have invented a new and useful Improvementin Steam and Varm-AirHeaters, of which the following is a specification, reference being hadto the accompanying draw ings, in which Figure 1. is a side elevation ofthe boiler, the surrounding casings being in section. Fig. 2 is asection on line as of Fig. 1, looking to the right. Fig. 3 is across-section on line y y of Fig. 1. Figs. at and 5 are details showingmodifications in the construction of the fire-box and heater.

My invention relates to that class of heaters employed for heatingbuildings by steam or heated air, or by the use of both together; andits nature consists in so constructing the firepot that it projects somedistance into the boiler, leaving a body of water surrounding it; in thearrangement and construction of the smoke-fines; in the devices fordirecting the heated air and products of combustion so as to obtain thelargest possible amount of heat therefrom, and in the several parts andcombinations of parts hereinafter described, and pointed out in theclaims as new.

In the drawings, A represents the ash-pit, which supports a grate, a,near its upper end, as usual.

B is the fire-pot, supported on a flange, 1), on the interior of theash-pit.

C is a drum, the upper end of which is covered by a suitable plateprovided with holes to receive tubes 0.

c are vertical pipes or fiues, open at both ends, extending from the topplate of the drum C,with which they communicate, to the top plate of theboiler.

D is the outer wall of a vertical boiler, the lower end of which extendsdown as far as the lower end of the drum C. The space between the lowerend of the drum and the outer wall of the boiler is closed, so that theboiler has a water-leg, d, which rests, as shown, upon the upper end ofthe fire-pot, and this water-leg also forms a part of the lire-chamben Eis a cylindrical casing some distance from and surrounding the boiler D.

e is an annular plate, the inner edge oil which is turned down to form aflange which fits into a groove in the edge of the fire-pot. The outeredge of this plate 6 is grooved to receive the lower edge of the casingE and retain and support the same.

F is a bafile-plate, made of a curved piece of iron of awidth to coverthe space between the boiler D and shell E. As shown, one edge restsupon the top plate of the boiler, and the other is supported upon aledge formed on the inner surface of the shell E. This baflie-pla-te Fextends half-way around the boiler on the rear side thereof, as shown inFig.

G are Vertical partitions extending downward, one from each end of thebattle-plate F, in the space between the boiler and the casing E.- Asshown, they extend about twothirds of the way down from the baiiie plateF to the annular'plate e.

H is an outer casing formed, as shown, of two thicknesses of metal, withan air-space between them for preventing the loss of too much heat byradiation.

I is a l10t-air chamber.

f is an opening through the casings E and H on a line with the top ofthe boiler for cleaning purposes. g are similar openingsfor the samepurpose, leading into the space between the boiler D and easing E, justabove the annular plate 6.

J is a flue above the battle-plate, having, as shown, a damper, 71, forcontrolling the draft. K is a similar flue opening into the spacebetween the boiler and the casing E, below the baffle-plate F.

L is the steam-pipe.

M is the return-pipe for the water of condensation.

N is the opening through which fuel is supplied to the fire.

O is the ash-pit door.

The operation is as follows: ater is supplied to the boiler by means ofsuitable pipes (not shown) and a fire started in the fire-pot B. Thesmoke and other products of (30111- bustion will pass up through thetines c, and when the damper h in the pipe K is open the smoke and otherproducts of combustion will pass directly through such pipe K to thechimney; but when the damper h is closed they will be drawn down thatportion of the space between the boiler and the casing E j that is notguarded by the bathe-plate i from whence they will be carried under thelower 1 ends of the partitions G and up on the opposite or rear side ofthe boiler. l'rom whence they will pass out through the discharge-thu- 1tom, and the lower end of the surrounding K to the chimney.

By compelling the products of combustion to pass around in contact withthe inner surface of the casing E the heat thus imparted to such easingE aids in heating the cold air 3 between it and the outer casing, ll,which air so heated rises to the hot-air chamber 1, from whence it canbe conducted by suitable lines, I", to the rooms desired to be warmed.

The steam generated in the boiler passes out through a suitable pipe, asI from whence it is carried to ordinary coils in the several rooms orother places to be heated.

By making the boiler with a surrounding 1 portion or water-1eg,1/, agreater amount of water is brought into direct contact with the heatedsides of the fire-chamber than would be the case if the fire-chamberwere wholly beneath the boiler, and the water can be heated and steamgenerated very quickly.

in Fig. -l 1 have shown the tire-pot and the drum t of the same widththroughout. The ash-pit in. this construction has vertical sides, whichreceive and support the an nular plate c. The construction shown in Fig.represents the drum wider at: the top than at the botportion orwater-leg (I provided with a curved bottom instead of a square one. Inthisconstruct'ion the annular-plate c isalso supported directly by thesides of the ash-pit A.

What I claim as ncw,and desire to secure by Letters atcnt, is

l. The combination of a vertical boiler provided with a water-leg whichforms a partof the tire-chamber, a casing, E, a battle-plate, I", whichextends only part way round the boiler, and partitions (i, allconstructed and arranged substantially as and for the purpose specilied.

:2. In a steam and hot-air heatelzthe combination of the lire-pot l aboiler, D, having a downwardly-extending water-leg which rests upon thelire-pot B and forms part of the tire-chamber, a casing, E, an outercasing,

, ]l,with a space for heating air betwecn the By the use of myimprovement I am enabled to heat one portion of a building by steam andother portions by hot air, or both the hot-air tines and steam-pipes mayrun to the same rooms and be used together or separately by the use ofsuitable dampers and valves in the fines and pipes.

two casings E and [Land a hot-air chamber, I, substantially as and forthe purposes specitied.

lCltAS'll'h V. ADKINS. \Y it nesses:

ALBERT ll. ADAMS, llannv 'l. Jeans.

